With shotguns its really a preference thing. I actually like the controls better on my 88 vs like say a Rem 870. The slide release button is behind the trigger guard vs the 870's button that is in front of the trigger guard.

Also, the loading tray is better on a Mossberg since it tuck up and out of the way 100% vs the 870's spring loaded lip that has "bite" off the skin of my thumb when loading since its always being pushed down with spring pressure.